A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6645-01-594-1439
NSN 5925-01-460-5487
NSN 5975-01-278-9055
NSN 6150-01-433-2107
NSN 5998-01-606-9940
NSN 5990-00-016-5648
NSN 5925-00-133-0451
NSN 6145-00-577-3505
NSN 6130-01-202-9304
NSN 7035-01-364-0286
NSN 5835-01-102-4451
NSN 6610-00-491-5867